Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 6672751 | Counter-flow asphalt plant with combustion zone feed and exhaust gas heater A counter-flow aggregate dryer for an asphalt plant is equipped with a secondary feeder for introducing RAP or virgin materials intermediate the ends of the combustion zone of the dryer. Nonveiling flights in the combustion zone shield material carried th... | 01/06/2004 |
| 6641993 | Aspirating and mixing of liquids within a probe tip Apparatus and a method for mixing a liquid within a disposable aspirating probe tip so that most of the liquid is forced to move past a transition zone between two different inside diameters to cause rotational mixing. The apparatus and method can be used... | 11/04/2003 |
| 4988207 | Drying/coating drum for the preparation of bituminous coated products, comprising an improved burner The drying/coating drum comprising a burner (20) whose body (19) penetrates via the discharge end (3) of the drum into a zone which is distant from this end. The gases and the solid materials circulate countercurrent-wise in the drum. The body (19) of the... | 01/29/1991 |
| 4533054 | Rotary fuel homogenizer and use thereof Solid waste incinerator fuel is preclassified by passing it through a hollow rotating cylindrical drum which has two sets of extensions from the wall going lengthwise along the length of the drum, the first set toward one end and the second toward the oth... | 08/06/1985 |
| 4067552 | Asphalt-aggregate recycle Recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually direc... | 01/10/1978 |
